From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6654 invoked by alias); 24 Feb 2013 13:39:30 -0000 Received: (qmail 6634 invoked by uid 48); 24 Feb 2013 13:39:30 -0000 From: "marc.khouzam at ericsson dot com" To: gdb-prs@sourceware.org Subject: [Bug breakpoints/15184] New: Cannot change dprintf style to agent for existing dprintfs Date: Sun, 24 Feb 2013 13:39:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gdb X-Bugzilla-Component: breakpoints X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: marc.khouzam at ericsson dot com X-Bugzilla-Status: NEW X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at sourceware dot org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: X-Bugzilla-URL: http://sourceware.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Mailing-List: contact gdb-prs-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-prs-owner@sourceware.org X-SW-Source: 2013-q1/txt/msg00313.txt.bz2 http://sourceware.org/bugzilla/show_bug.cgi?id=15184 Bug #: 15184 Summary: Cannot change dprintf style to agent for existing dprintfs Product: gdb Version: HEAD Status: NEW Severity: normal Priority: P2 Component: breakpoints AssignedTo: unassigned@sourceware.org ReportedBy: marc.khouzam@ericsson.com Classification: Unclassified Updating the dprintf-style to 'agent' for existing dprintfs will cause: "May only run agent-printf on the target" when it is time to print and it will interrupt the inferior. Here's a session showing the problem: > gdb.7.6 ~/loopfirst GNU gdb (GDB) 7.5.50.20130223-cvs (gdb) l 1 #include 2 #include 3 4 int main() { 5 for (int i=0;i<20;i++) { 6 printf("hello"); 7 printf("friend\n"); 8 printf("home\n"); 9 sleep(1); 10 } (gdb) target remote :9999 Remote debugging using :9999 Reading symbols from /lib/ld-linux.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/ld-linux.so.2 0x00110850 in ?? () from /lib/ld-linux.so.2 (gdb) dprintf 8,"welcome\n" Dprintf 1 at 0x804855f: file loopfirst.cc, line 8. (gdb) b 9 Breakpoint 2 at 0x804856b: file loopfirst.cc, line 9. (gdb) info b Num Type Disp Enb Address What 1 dprintf keep y 0x0804855f in main() at loopfirst.cc:8 printf "welcome\n" continue 2 breakpoint keep y 0x0804856b in main() at loopfirst.cc:9 (gdb) c Continuing. welcome Breakpoint 2, main () at loopfirst.cc:9 9 sleep(1); (gdb) set dprintf-style agent (gdb) info b Num Type Disp Enb Address What 1 dprintf keep y 0x0804855f in main() at loopfirst.cc:8 breakpoint already hit 1 time agent-printf "welcome\n" 2 breakpoint keep y 0x0804856b in main() at loopfirst.cc:9 breakpoint already hit 1 time (gdb) c Continuing. May only run agent-printf on the target (gdb) bt #0 main () at loopfirst.cc:8 -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.